Finding the Fourth Proportional to 288,325.49, 432,567.14 and 138,690.95
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Solution
The fourth proportional to 288,325.49, 432,567.14 and 138,690.95 is: 208,074.38
Step by Step Solution
- Step 1: Write the proportion equation
288,325.49 : 432,567.14 = 138,690.95 : x - Step 2: Convert to fraction form
288,325.49/432,567.14 = 138,690.95/x - Step 3: Cross multiply
288,325.49x = 432,567.14 × 138,690.95 - Step 4: Simplify right side
288,325.49x = 59,993,146,503.97 - Step 5: Solve for x
x = 59,993,146,503.97/288,325.49 - Step 6: Final answer
x = 208,074.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.